Why are Geckos feet so sticky? Can it snow on mars? Is it possible for someone to spontaneously combust? We answer these questions this week on Ask the Naked Scientists. We also find out why lemons float more than limes, reveal the correct terminology for the himalayas and how thisregion can control weather conditions on the rest of the planet,uncover what will happen when the sun stops burning andinvestigate how magnets work. Like this podcast? Please help us by supporting the Naked Scientists

What is fusion? Can we achieve cold fusion? How useful is nuclear power and is it safe? We look into these questions on this week's Ask the Naked Scientists. We'll also be finding out how sailing ships avoid the wind andwhy venomous snakes don't poison themselves, plus dig into how carbon dating works and reveal why ducks don't sink in water. Like this podcast? Please help us by supporting the Naked Scientists

What colour will the end of the universe be? How can the moon look orange? Why can't we fly individually with jetpacks? We answer these questions on this weeks Ask the Naked Scientists. We also find out if bigger brains means dumber people, if the use of polystyrene in our soils can poison our food and reveal how to move a tin can without touching it! Like this podcast? Please help us by supporting the Naked Scientists

Red tongues, intestinal bacteria, appliances on standby and gut-busting stress levels all go under the microscope for Dr Chris's examination in this weeks Ask the Naked Scientists, when we'll also find out why an alternator connected to an electric car is a non-starter and what on Earth is nuclear fusion? Like this podcast? Please help us by supporting the Naked Scientists

What is the Large Hadron Collider? How can a particle accelerator simulate the big bang? What are our options for energy in the future? Dr Dave tackles these questions on this weeks Ask the Naked Scientists.We also find out why the moon doesn't rise and set like the sun, how ships can carry heavy cargo without sinking and why melting icebergs won't actually change our sea levels. Like this podcast? Please help us by supporting the Naked Scientists

Could you stop yourself ageing by travelling at the speed of light? Why aren't we full of someone else's DNA after a blood transfusion? How do trees drink? All these questions and more will be answered this week on Ask the Naked Scientists! We'll also be finding out why the expanding universe is like a balloon and how you can lose weight (but not mass) in space. Like this podcast? Please help us by supporting the Naked Scientists

What is a flame? How do fireworks control their explosions? Why is it impossible to swat flies? Dr Chris tackles these question in this week's Ask the Naked Scientists as well as discovering how much heavier a tree is made by its leaves, predicting the outcome of a flu epidemic in todays society and revealing why a tea bag doesn't float in hot water. Like this podcast? Please help us by supporting the Naked Scientists

How do planes make shadows on the clouds? Can mosquitoes transmit HIV? Which sense do we lose last under anaesthetic? Drs Chris and Dave have the answers in this week's Ask the Naked Scientists when they also delve into cellulitis and how not to catch it, how athletes can constantly break world records, why men and women get fat in different places and why perpetual motion is a pipedream Like this podcast? Please help us by supporting the Naked Scientists

How do we weigh the Earth, what's the basis of diabetes, does dandruff really trigger rain and clone alone - who would you make a copy of given the chance? Dr Chris pits his wits against these and other questions in this weeks edition of Ask the Naked Scientists. Like this podcast? Please help us by supporting the Naked Scientists

When is wood not safe to burn? What makes poisonous plants dangerous? Could you get a satellite to orbit the moon? This week on Ask The Naked Scientists, we'll give you the answers to all these questions. We'll also find out the difference between cold and flu viruses, compare sheet and fork lightning and find whether a bluetooth headset could be used to track you down... Like this podcast? Please help us by supporting the Naked Scientists